I have a workbook with many sheets. there are tables in two differents sheet and i refer to a column of the first table in some cell on the other table on another sheet but when I drag the cell to copy the formula it changes the column too. is there a way to give the column an absolute reference? here is my formula =SUMPRODUCT((Table5[Date]=Presence!$A2)*(Table5[Haut M]=Presence!D$1)*(Table5[H/M])) thank you